Longines · Lyre

Strap for Lyre Quartz 38.5mm Two Tone / White

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
ReferenceL4.859.2.12.7 (aka: L48592127)
FamilyLyre
MovementLongines caliber L157 Hours, Seconds, Minutes | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Lyre L4.859.2.12.7 (aka: L48592127)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Lyre L4.859.2.12.7 (aka: L48592127), seen from the bench

The Longines Lyre reference L4.859.2.12.7 features the L157 caliber with hours, minutes, seconds and date indication. The movement provides the basic functions with a reliable in-house mechanism. The watch has 20mm lugs for the strap.

Frequently asked questions

What is the lug width of the Longines Lyre L4.859.2.12.7?

The lug width of the Longines Lyre L4.859.2.12.7 is 20 mm. This measurement represents the distance between the lug pins and is a critical parameter when selecting compatible aftermarket straps. An incorrect lug width would compromise the watch's aesthetic integrity and create instability during wear.

Which strap is recommended for the Longines Lyre L4.859.2.12.7?

For the Lyre, alligator straps are recommended for formal contexts, vegetable-tanned calf leather for daily wear with natural patina development, shell cordovan for profound elegance, or fabric NATO straps for sports versatility. Strap selection depends on dial colour and intended use. Alligator remains the ultimate choice with its uniform scale texture.

How do you change the strap on a Longines Lyre L4.859.2.12.7?

Remove the strap by using a spring bar tool to release the lug pins. Insert the tool into the pin's internal hole, push inward to compress the spring, then slide the pin out. Once removed, insert the new strap's pins into the lug holes and re-secure them. This straightforward operation can be performed with care by any user.

Are compatible aftermarket straps available for the Longines Lyre L4.859.2.12.7?

Yes, 20 mm aftermarket straps are readily available online and fully compatible with the Lyre. Artisanal strap makers offer premium materials (alligator, calf, shell cordovan), custom sizing, initial engraving, and stitching thread options. Construction warranties typically span 18 months.

How long does a leather strap last on a Longines Lyre L4.859.2.12.7?

Leather strap longevity depends on material and usage patterns. Alligator and shell cordovan withstand 3-5 years under daily wear. Vegetable-tanned calf, due to its inherent density, lasts 2-4 years whilst developing an aesthetic patina. Factors including perspiration, humidity, and UV exposure accelerate ageing. A well-maintained strap—dried after perspiration and stored in a dry environment—significantly extends its lifespan.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only